baber/WOPTO huggingface dataset:
Patent GB-1242287-A (GB)
Title: Bleaching and detergent compositions
IPC: C11D3/39
Filed: 1968-10-21
Abstract: 1,242,287. Bleaching textiles. COLGATEPALMOLIVE CO. 21 Oct., 1968 [24 Oct., 1967], No. 49874/68. Heading D1P. [Also in Divisions C2 and C5] A composition suitable for use in the bleaching of textile materials, e.g. of cotton, nylon or polyesters, comprises (i) a water soluble peroxygen compound, e.g. sodium perborate, percarbonate or persilicate, and (ii) a water soluble N-sulphonylimide of the formula in which R is an alkyl group having 1-4 carbon atoms or an aryl group and Z represents the non-metallic atoms necessary to complete a cyclic imide having a non-condensed or condensed ring system. Specified N-sulphonylimides are N-benzenesulphonyl phthalimide, N-methanesulphonyl phthalimide, N-benzene sulphonylsuccinimide and N-methane sulphonyl succinimide. The composition may contain the N-sulphonyl imide and peroxygen compound in the mole ratio of 0.01:1 to 2:1 and may also comprise an anionic nonionic cationic or amphoteric detergent. The anionic detergent may be a soap, ammonium, substituted ammonium, alkali metal or alkaline earth metal higher alkyl benzene sulphonate, olefin sulphonate, higher alkyl sulphate, higher fatty acid monoglyceride sulphate, alkyl or aromatic poly (ethenoxy) ether sulphate, higher alkyl glyceryl ether sulphonate, acylsarcosinate, acyl ester of an isethionate or acyl N-methyl tamide, the nonionic detergent may be a reaction product of a carboxylate, hydroxyl, amide or amine containing compound with ethylene oxide, the cationic detergent may be an amine or quaternary ammonium compound and the amphoteric detergent may be an N-long-chain alkyl amino carboxylic acid, N-long-chain alkyl imino dicarboxylic acid or N-long-chain betaine or a fatty imidazoline. The composition may also contain a builder, e.g. trisodium phosphate, tetra sodium pyrophosphate, sodium acid pyrophosphate, sodium tripolyphospate, sodium mono- or di-basic phosphate, sodium hexametaphosphate, sodium silicate, sodium carbonate, sodium sulphate, borax or ethylene diamine tetraacetic acid tetrasodium salt, a fatty acid amide, xylene or toluene sulphonate, ethanol, ethylene glycol, hexylene glycol, sodium carboxymethyl cellulose, cellulose sulphate, an alkyl or hydroxy alkyl cellulose, polyvinyl alcohol, optical brightening agents, corrosion inhibiting agents, germicides and perfumes. In detergent compositions the peroxygen compound and N-sulphonylimide may be packaged in separate compartments of a watersoluble film packet or the N-sulphonylimide may be coated with an ethylene oxide or propylene oxide condensation product, polyvinyl alcohol or carboxymethyl cellulose. Bleaching may be effected at not more than 85 C.
Patent GB-1455253-A (GB)
Title: Signal detection circuit
IPC: B60C23/04
Filed: 1972-11-04
Abstract: 1455253 Semiconductor pulse discriminating circuits DUNLOP Ltd 30 Oct 1973 [4 Nov 1972 19 May 1973] 50915/72 and 23980/73 Heading H3T  A differential amplifier A changes its output from one to the other of two possible states when a pulse at E overcomes the D.C. bias maintained by voltage divider R1, R13, R6 across the amplifier inputs I, NI, one of which is held by C1 from responding to pulse inputs. Feedback R11, C2 renders the amplifier monostable, and the circuit is also arranged to hold the amplifier output in its other state if the D.C. level at E changes by a large enough amount to indicate a fault. Low tyre pressure signals in a motor vehicle are received by coils S1 to S4 in the form of pulses. A negative pulse from S1 &c. reaches the inverting input I of amplifier A to trigger the monostable, but is prevented from reaching the non- inverting input NI by capacitor Cl. Until the monostable resets it is insensitive to further pulses at E, and its output pulses may operate an alarm. A change in D.C. conditions, however, due to open- or short-circuiting of a coil or coils 51 to 54 appears as a change in voltage across R13, which triggers the output of the amplifier to the "other" (high) level where it remains while the D.C. condition persists. Diodes D1, D2 limit the positive and negative savings at inputs I, NI arising from open and short circuits respectively; and the non-limited input continues to swing until the necessary voltage differences appear (I lower than NI) to trigger the amplifier output to the said high condition. To provide discrimination against extraneous pulses at the input, a discriminator may be included Fig. 2, not shown) which responds only to the particular form of the tyre pressure pulses, namely a larger pulse flanked by two smaller pulses of polarity opposite to the larger one. In the discriminator the pulses are amplified (IC1) and separated by diodes (D3, D4) to charge opposite sides of a capacitor (C5). Only if the middle pulse is sufficiently large does a voltage divider (R20, R21) across the capacitor produce an output to the monostable (IC2, R25, C8).
Patent GB-1291355-A (GB)
Title: A method and an apparatus for locally repairing the refractory inner wall of a metallurgical vessel such as a ladle
IPC: B22C15/20
Filed: 1970-10-27
Abstract: 1291355 Repairing foundry ladles KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN NV 27 Oct 1970 [28 Oct 1969] 51073/70 Heading F4B A ladle or other vessel for molten metal is repaired while still at a temperature above the evaporation point of the binder of the refractory repairing mix by projecting a stream of the refractory mix in a direction parallel to the wall of the ladle, deflecting the stream towards the wall at the zone requiring repair, and moving the sand slinger relative to the ladle wall. A slinger 45 is supported above a ladle 1 rotated on a turntable 2. The discharge outlet 8 of the slinger is directed to discharge downwardly parallel to the ladle wall, and a curved deflecting tube 9 with its outlet directed towards the ladle wall is telescopically connected to the outlet tube 8 so that it may be moved up and down. The slinger 5 may be moved radially of the ladle. The repairing mix may be sand and water.
Patent GB-1507889-A (GB)
Title: Microwave ovens
IPC: H05B6/80
Filed: 1975-12-15
Abstract: 1507889 Microwave ovens HUSQVARNE AB 15 Dec 1975 [18 Dec 1974] 51234/75 Heading H5H A microwave oven has a radiating antenna system in a chamber 1 adjacent a heating chamber (4, Fig. 2, not shown) , energy being transmitted from antenna chamber 1 to heating chamber 4 via openings 11 in a metal plate 12, coaxially within which openings being coupling pins 13 of metal or a low loss dielectric material. Magnetron 3 and antenna are interconnected by waveguide 2, doorknob transformer 9 (or a pin or probe) and coaxial line 7. A coating of synthetic resin or ceramic prevents flashover from antenna to walls of chamber 1. Pins 13 may have various shapes which may in an oven be mutually different at different places to suit the load, e.g. conical, cylindrical. Pins 13 may be mounted in a microwave transparent plate or in floor of "antenna chamber". U-shaped pins may be supported by a perforated metal plate.
Patent GB-1199860-A (GB)
Title: Method of Recovering Silver in the Form of the Chloride from Photographic Solutions
Inventor: CLARKE BARBARA ELIZABETH CRERA
IPC: G03C5/395
Filed: 1968-10-31
Abstract: 1,199,860. Silver chloride. B. E. C. CLARKE. 31 Oct., 1968 [1 Nov., 1967], No. 51577/68. Heading C1A. Silver chloride is produced from photographic bleaching solutions by adjusting the pH of the solution to a value below 4À5 if the pH of the solution is above this value, and adding sodium or potassium chloride thereby causing precipitation of silver chloride. The process is preferably carried out at 5‹ to 15‹ C.
Patent GB-524220-A (GB)
Abstract: 524,220. Flue dampers. LOWENHEIM, W. Jan. 24, 1939, No. 2464. [Class 51 (i) ] A sliding flue damper has transverse upper and lower projections of such thickness as to bridge the mouth of the damper slot when the damper is in closed or open position and thereby prevent egress of ash and fumes therethrough. The damper may be of the roller blind type described in Specification 453,477, with the lower projection a weight and with inward extensions of the slot arranged to abut the said weight or an asbestos filled recess therein. The upper projection may rest in a V seating on the outside of the slot or abutting edges of the slot or extensions thereof or the projections may be provided with asbestos pockets containing weights or springs and acting as flexible seals. The damper may also be horizontally arranged.
Patent GB-1400083-A (GB)
Title: Lightning arresters or surge diverters
IPC: H01T1/06
Filed: 1972-11-14
Abstract: 1400083 Surge diverters BOWTHORPEHELLERMANN Ltd 13 Nov 1973 [14 Nov 1972] 52601/72 Heading H2H A surge diverter or lightning arrester comprises at least one rotating arc magnetic gap in series with a parallel combination of at least one linear resistor and at least one non-linear resistor. Preferably the linear resistors are high temperature bonded blocks and the non-linear resistor has a substantially higher value than the linear resistor at the spark-over voltages so that the arrester can be matched to the line impedance at various voltages. A current limiting resistor comprising non-linear resistors in series with a gap having electrodes in a closed chamber and subjected to a magnetic field may be connected in parallel with the assembly. The rotating arc magnetic gap shown comprises top and bottom copper plates and copper discs 3 separated by heat insulating spacers 5 and carrying radially polarized ceramic or other magnets 4.
Patent GB-1128479-A (GB)
Title: Improvements in and relating to electrophotographic recording elements
IPC: G03G5/09
Filed: 1966-11-25
Abstract: 1,128,479. Electrophotography. DENNISON MFG. CO. Ltd. 23 Nov., 1966 [26 Nov., 1965], No. 52821/66. Heading H1K. An electrophotographic recording element comprises a support having a coating thereon of a dispersion of zinc oxide in a. binder together with a sensitizer comprising thiourea dioxide, or a compound of the formula:- wherein R<SP>1</SP>, R<SP>2</SP> ,  R<SP>3</SP> and R<SP>4</SP> = H, lower aliphatic, lower cycloaliphatic, lower acyl, aryl or heterocyclic and R<SP>5</SP> and R<SP>6</SP> = lower divalent aliphatic, the heterocyclic ring being a sixmembered ring containing C, N and O. The support may be paper whilst the binder may be poly-α-methyl styrene or an acrylic polymer. A list of sensitizing dyes is given.
Patent GB-1042110-A (GB)
Title: Improvements in apparatus for counting shots hitting a target
IPC: F41J5/056
Filed: 1964-12-31
Abstract: 1,042,110. Targets. VAISALA OY. Dec. 31, 1964 [Jan. 2, 1964], No. 52938/64. Heading F3X. [Also in Division G4] Hits on a target 8 affect a piezo-electric crystal 6 to operate an electric counter 3. Working condition of the apparatus can be tested by closing switch 12 when the associated gas tubes 11, 13 should ignite.
Patent GB-1205289-A (GB)
Title: Hydraulic press
Inventor: HUREK JAROSLAV
IPC: B21D22/12
Filed: 1968-11-08
Abstract: 1,205,289. Capping. USTAV PRO VYZKUM MOTOROVYCH VOZIDEL. 8 Nov., 1968 [8 Dec., 1967], No. 53076/68. Heading B3Q. An hydraulic stamping press in which sheet metal 25 is shaped against the elastic wall 7 of a pressure chamber, comprises a wear pad 11, Fig. 2, covering the elastic wall and formed of two layers 17, 18 connected together at their centres 19, a central portion of the lower layer 17 being delineated by a recess 23 directed to the outer edge of a separator 20 removed after the pad has been made. In the embodiments, the pad is made by sandwiching a metal separator ring 20 between plastics sheets 17, 18 and joining the sheets at their central areas, as by vulcanizing, the lower sheet 17 being of harder material than the elastic material of the upper layer 18. A cylindrical or inclined annular groove 23 is cut, e.g. in a lathe, and the separator is removed and replaced by a lubricant. A separator having weakening grooves (22), Fig. 6 (not shown), may be used. Both the wallcarrier 2 and a cupping punch 16 are movable hydraulically. During cupping, the perimeter of the blank is held against a ring 15.
Patent GB-1139112-A (GB)
Title: Magnet structure
IPC: H01F7/02
Filed: 1966-11-28
Abstract: 1,139,112. Magnets; magnetrons. VARIAN ASSOCIATES. 28 Nov., 1966 [8 Dec., 1965], No. 53188/66. Headings H1D and H1P. A magnetic structure comprises a pair of axially aligned spaced apart permanent magnets of magnetization decreasing with increasing temperature, the magnets defining a gap between a pair of their near poles of opposite polarity, a magnetically permeable yoke enclosing the magnets and a temperature-compensating shunt of a coefficient of permeability which decreases with increasing temperature. In a magnet for a voltage-tunable magnetron having two platinum-cobalt magnets 29 and 31 of unequal size secured to soft iron or steel end plates 27 and 28 and set in a soft iron block 21, a temperaturecompensating shunt 32 is held in by a non- magnetic steel retain ring 33. A voltagettmable magnetron 34 is located in the gap 35. In other embodiments the shunt may be a sleeve surrounding the greater part of the magnet, a core within one or both of the magnets or a pair of plates across the opposed faces of the magnets joined to the sides of the yoke (Figures 2 and 4, not shown). A magnet for a gyromagnetic resonance spectrometer (Figure 7, not shown) has both sleeve and core shunts with separate pole pieces and electromagnets to magnetize initially the permanent magnets and to modulate or sweep the magnetic field between the magnets.
Patent GB-1141739-A (GB)
Title: Improvements in or relating to hoisting gear
IPC: B66D1/12
Filed: 1967-11-22
Abstract: 1,141,739. Driving winding gear. A. KASPER. 22 Nov., 1967, No. 53223/67. Heading B8B. [Also in Division H2] A hoisting gear comprises a cable pulley secured to the shaft 3 of a worm-wheel 2 which is driven via a worm shaft 5 by an external rotor motor, the rotor 15 of the motor including a brake surface 16 adjacent to which are provided axial cooling air passages 23. The rotor incorporates an axially apertured cover 20 screwed at 21 to the worm-shaft and having ribs 20<SP>1</SP> forming a fan which impels air into the motor from the aperture. The air passing from the cover 20 divides to flow through passages 23 to cool the brake 16 and through passages 13<SP>1</SP> to cool the rotor laminations 13. The air from the passages 13<SP>1</SP> passes over the main worm-shaft bearing 7 and through an electrical cable box 27 before passing to atmosphere. A hand wheel 14 is provided integral with the cover 20 for manual operation of the hoisting gear in emergency. The brake surface 16 is acted upon by a twin jaw brake 17 actuated by a magnet 18. In another embodiment, Fig. 6 (not shown), the aperture in the ribbed rotor cover is closed and the cooling air is supplied to the motor by an independent fan and ducting leading to the motor. Passages (30) in the stator laminations facilitate cooling thereof and of the stator end coils (12<SP>1</SP>) (12<SP>11</SP>). The external surface of the hand wheel comprises the brake surface and cooling air passages are provided in the wall supporting the hand wheel on the rotor.
Patent GB-1270720-A (GB)
Title: Improvements in or relating to rolling bearings and in or relating to sealing rings therefor
IPC: F16C33/78
Filed: 1969-10-30
Abstract: 1,270,720. Seals. S.K.F. KUGELLAGERFABRIKEN G.m.b.H. 30 Oct., 1969 [31 Oct., 1968], No. 53245/69. Heading F2B. A resilient sealing ring 6 for a bearing comprises a sealing lip 8 formed on one peripheral surface, an annular series of recesses 9 adjacent the sealing lip and a second annular series of recesses 7 adjacent the other peripheral surface. The recesses 9 are spaced apart by inclined ribs 10 which resiliently support the sealing lip 8 against an annular portion 11 of the ring. The recesses 7 facilitate insertion of the ring into the groove 4 of the outer bearing race 1.
Patent GB-1480344-A (GB)
Title: Piston rings
IPC: F16J9/06
Filed: 1973-11-16
Abstract: 1480344 Piston rings HEPWORTH & GRANDAGE Ltd 14 Nov 1974 [16 Nov 1973] 53329/73 Heading F2T In an oil ring assembly, a resilient segmented spacer expander 11, for two scraping rings (17, Figs. 2, 5 and 8, not shown), has spacing elements 16, (16A). The spacer-expander is formed by stamping and bending from a flat strip of spring steel.
Patent GB-1104239-A (GB)
Title: Linear potentiometer
IPC: H01C10/38
Filed: 1966-12-05
Abstract: 1,104,239. Potentiometers. STACKPOLE CARBON CO. 5 Dec., 1966 [30 March, 1966], No. 54264/66. Heading H1S. In a linear potentiometer of the type having a resistance strip 10 (Fig. 3), against one side wall of the casing, and a metal collector strip 20, against the opposite side wall, bridged by a wiper attached to a slider, the wiper is in the form of a flexible metal wire coil 27 mounted on a post 28 projecting from the slider 25. This slider has an actuating knob that projects from the housing and slides in slot 2 in the front face of the housing in which it is locked by grooves 26 (Fig. 6). To allow the wire coil to be compressed by the two strips that it engages, to improve the electrical contact, the width of the post transverse the housing is much less than the inside diameter of the coil; in the direction lengthwise of the housing however, the width of the post is substantially equal to the inner diameter of the coil to avoid loose play as the slide is moved. The coil is retained on the post by head 29. The terminals are connected to the resistance strip by spring clips 11 and 15, the collector strip having a terminal 21. The housing, which may have openings 30 for cooling purposes, is formed of two moulded half-sections joined by an adhesive or held together by a spring clip (3, Fig. 4, not shown), snapped into a recess (4). Potentiometers of this kind can be ganged together and mounted on a perforated circuit-board (Figs. 11, 12, not shown), and stabilizers (56 in Fig. 15, not shown) can be fitted. To permit fine adjustment, the potentiometer may be provided with a slider (50, Fig. 10, not shown), having a threaded opening to receive an adjusting screw (51), mounted outside the casing, rotation of which causes the slider to move along in its slot.
Patent GB-1394268-A (GB)
Title: Animal ear tag applicators
IPC: A01K11/00
Filed: 1972-11-23
Abstract: 1394268 Gripping tools DELTA PLASTICS Ltd 23 Nov 1972 [25 May 1972] 54270/72 Heading B4W [Also in Division B6] Pliers for applying an ear tag of plastics material to the ear of an animal comprises a jaw 15 having a projecting ear-piercing pin 17 on which a tubular male component 40 of the ear tag may be mounted, a jaw 16 providing a recess 27 for the female component 44, a hole 25 at the rear of the recess, and a pivotally mounted spring loaded plate having a slotted end 32A which holds the component 44 in position. The jaws 15, 16 in the closed position are spaced to accommodate an animal's ear. The tag component 40 has a stem 41 with an enlarged head and flange portion 42, 43 which passes through the hole pierced by the pin 17 and when pressed into the female compound 44 interlocks therewith to allow the pin 17 to be withdrawn upon opening of the jaws under the action of a spring 35.
Patent GB-1216839-A (GB)
Title: Improvements in or relating to demagnetizing systems
IPC: H01F13/00
Filed: 1967-12-05
Abstract: 1,216,839. Detecting flaws. MAGNAFLUX CORP. Dec. 5, 1967 [Dec. 30, 1966], No.55350/67. Heading G1N. An automatic system for demagnetizing a body before flaw-testing, comprises current supply means for supplying a demagnetizing current, control signal means for developing a control signal having a gradually changing magnitude, control means responsive to the signal for controlling the supply means to decrease the demagnetizing current and reversing means for periodically reversing the current, in which the signal is periodically changed to produce a low amplitude magnetizing current during reversal, the amplitude being progressively less after each reversal. The body 11 is magnetically examined by placing it between contacts 12 and 13 or in coil 14 and the contact 15 or 16 closed to magnetize the body. During or after magnetization of the body 11, magnetic particles are distributed over the body to show up any cracks or defects. The body is magnetized by a fixed reference voltage developed by the "control unit" 48 Fig. 2 (not shown) which is applied via line 154 and the "demagnetizing control unit" 51 Fig. 2 (not shown) The body 11 is demagnetized by the system shown. The demagnetizing current is supplied first at a high voltage and then at a lower voltage by relays 99 and 100 which are controlled by unit 51. The direction of the demagnetizing current is controlled by relays 75 to 78 through relay 79 actuated by alternate steps of a stepping switch (164) in the "demagnetizing signal generator" 56 Fig. 3 (not shown). The stepping switch advances at a rate governed primarily by the value of a capacitor (176) and the pulses from the switch are applied across a resistor (179) and capacitor (180) to give an alternating waveform (183) Fig. 4 (not shown). The waveform is clipped by a Zener diode circuit (185, 186, 188) and its amplitude progressively charged by the switch (164) and fed to the "reactor control unit" 48. The unit 48 thus governs the strength of the demagnetizing current from reactor 28. The strength of the current is held constant between reverses by a feedback transformers 65 and 66.
Patent GB-1417288-A (GB)
Title: Corona charging devices
IPC: G03G15/02
Filed: 1973-11-29
Abstract: 1417288 Corona charging apparatus INTERNATIONAL BUSINESS MACHINES CORP 29 Nov 1973 [20 Dec 1972] 55358/73 Heading H1X A corona discharge electrode for operation at a negative potential in a charging device of an electrophotographic machine comprises a core having at least an outer layer of electrically conductive material with a layer of inorganic dielectric material having a resistivity of at least 10<SP>6</SP> ohm cms. bonded to the outer surface. of the conductive material. The core may comprise a conductive filament of stainless steel, Mo, W, Al, Au or Cu, or may be a filament of cotton, silk or rayon with a conductive coating. The dielectric layer may be a metal oxide, e.g. an oxide of Al, Zn, Mg, Ti, Ba, Be, Ca, Ce, Sr, Zr, Th or Hf, a ceramic material such as silicone nitride, silica, silicon, boron nitride, zirconium silicate, titanates such as those of Pb, Ba or Ca, ferrites such as those of Zn, Al and Mg, glasses such as phosphosilicate glasses with or without metallic oxide additions, and borosilicate glasses. The electrode is mounted in known forms of corona charging devices (Figs. 2a to 2e, not shown).